Tane Kawau, 19, appeared in Warrnambool Magistrates Court on Tuesday afternoon where he made a successful bail application.

Mr Kawau is charged with making threats to inflict serious injury, unlawful assault, assaulting an emergency worker on duty and acting prejudicial to the good running of a police jail.

Police allege that between 10am and 10.30am on Monday the man drove past a 33-year-old male victim's workplace on Thompson Street in central Hamilton.

He parked across the road, stormed into a tobacco shop and the worker thought he was going to be knocked out.

Mr Kawau left the shop but hung around the area for another 45 minutes.

When he saw the victim on the phone, Mr Kawau allegedly went back into the shop and said he would drag the store attendant across the counter, hit him and knock him out.

The court heard he also threatened to pick up a cash register and throw it at the man's head.

When police officers arrived the man was requested to leave but he remained aggressive.

He asked police officers to fight him, a scuffle took place and the man was arrested, interviewed and charged.

He told police he had been driving around looking for a fight.

The court heard he had consumed a cocktail of cocaine, ketamine and speed in the hours before the alleged offending.

Lawyer Amanda Hurst said Mr Kawau was distressed following an inquest into his mother's murder last week.

She said the murder occurred about four years ago when her client was just 15.

"I have spoken to (Mr Kawau's) uncle who sat through the hearing last week and found it very distressing," Ms Hurst said.

"The hearing was reported in the media and that really upset (Mr Kawau) and contributed to his drug use.

"The trigger for this offending was certainly that Coroner's Court hearing."

Mr Kawau's mother Kylie Cay died on June 18, 2016 after she was assaulted by Port Fairy man Justin Garry Turner who later pleaded guilty to killing her.

Judge Kevin Bell expressed "serious concerns" during a Warrnambool Supreme Court hearing in September 2017 about an ambulance request being refused after her spleen ruptured at her home.

The Coroners Court of Victoria last week probed why the injury that would ultimately kill her was not detected before she was discharged from the Warrnambool Base Hospital.

Magistrate Franz Holzer said he understood the inquest would be particularly distressing but drugs were not the answer.

"Drugs aren't going to help you deal with your issues," he said.

"If you need professional assistance, you should look to that rather than taking illicit substances or drinking to excess."

The magistrate granted Mr Kawau bail with strict conditions, including he reside in Hamilton, not consume drugs or alcohol, not contact the victim and abide by a 9pm to 6am curfew.

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